2009772 has 30 divisors (see below), whose sum is σ = 5254788. Its totient is φ = 669816.

The previous prime is 2009771. The next prime is 2009783. The reversal of 2009772 is 2779002.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2009771) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2778 + ... + 3425.

2^2009772 is an apocalyptic number.

It is an amenable number.

2009772 is an abundant number, since it is smaller than the sum of its proper divisors (3245016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2009772 is a wasteful number, since it uses less digits than its factorization.

2009772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6219 (or 6208 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 2009772 is about 1417.6642761952. The cubic root of 2009772 is about 126.1969708344.

The spelling of 2009772 in words is "two million, nine thousand, seven hundred seventy-two".